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mcrPioda is a fork of the mcr package with additional functionalities:
All regression functions are written in C out of the MM-Deming which is kept for reproducibility and should be considered deprecated.
There is an urgent need for M-Deming since all Passing Bablok regression are biased with low precision data sets (especially with 2 and 3 significant digits only).
Power testing for the jackknife and bootstrap Cis are ongoing. Jackknife could be an attractive alternative to bootstrap for small sample size.
For the smallest samples the Bayesian Deming regression can be a better option. The same is true with heteroscedastic data sets. Check package rstanbdp.
Worth mentioning that M-Deming relies on the very same recursive method proposed by Linnet the for WDeming, just with an M- algorithm for robust weight.
MM-Deming algorithm is more complex. It is also a recursive method but relies on MM- methods and uses bi-square re-descending weights. The new algorithms NgMM- and PiMM- refresh the mad() dispersion of the residuals at each iterations, making the end results much less sensible to the starting values.
Reference: http://arxiv.org/pdf/2105.04628.pdf See also: https://ssmtstatistica.wordpress.com/2024/01/27/equivariant-passing-bablok-regression-27-01-2024/
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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